#584 HPDL-1414

Test driving a retro HPDL-1414 4-digit GaAsP display with an Arduino.

Here’s a quick demo..

Notes

The HPDL-1414 is a smart, four character, sixteen-segment, red GaAsP display. The on-board CMOS IC contains memory, ASCII decoder, multiplexing circuitry and drivers.

• Supply Voltage : 4.5-5.5V
• Macimum current: 90mA
• Character height: 2.85 mm (0.112”).

The real beauty of this “old fashioned” display is the immersion lens that magnifies the red GaAsP segments nicely.

Module Connection

Construction

Programming

Using the HPDL1414 Arduino Library.

The character set is quite limited, and custom glyphs are not supproted

Credits and References

• HPDL1414 datasheet (farnell)
• 100pcs X HPDL-1414 HPDL1414 Four character smart digital display. Digital Tube
• HPDL1414 Arduino Library
• Using Ancient Litronix DL-1414 LED Displays With an Arduin